Study of risk acceptance criteria for dams  

作　　者：LI ShouYi ZHOU XingBo WANG YuJie ZHOU JianPing DU XiaoHu CHEN ZuYu 

机构地区：[1]Institute of Water Resources and Hydropower Engineering, Xi'an University of Technology [2]Department of Geotechnical Engineering, China Institute of Water Resources and Hydropower Research [3]Power Construction Corporation of China, Ltd. [4]China Renewable Energy Engineering Institute

出　　处：《Science China(Technological Sciences)》2015年第7期1263-1271,共9页中国科学（技术科学英文版）

基　　金：supported by the National Key Basic Research Program of China(Grant No.2013CB036403)

摘　　要：This paper discusses the methods of establishing risk criteria for dams and reviews the application of dam risk criteria for individuals and societies in different countries or districts. Given the conditions in China and considering the public safety and acceptance of dam risk, historical dam break data and current design standards, individual and societal risk criteria for dams are proposed. The tolerable dam risk criteria for individuals should be set to 10-5-10-7 per annum based on project scale, for ex- ample, approximately 1.0xl0 7 per annum, which corresponds to a reliability index of 4.2 based on a 100-year lifespan for a first-class or large project. The societal limit for risk tolerance for dams should be set to approximately 10-3-10-5 per annum, corresponding to the fatality range from 1 to 100 and be horizontally extended to 1000, and F-N curves are proposed. It was also found that the reliability indices of Chinese Standard （GB 50199-2013） and Eurocodel （2002） are different, but they have the same level of safety measured by the annual probability of failure. The research results have significance for establishing dam risk criteria.

关 键 词：dam risk criteria acceptable risk annual probability of failure dam safety 

分 类 号：TV698.1[水利工程—水利水电工程]